Method
eval
(final double[] x, final boolean wantGrad, final boolean wantHessian)
Source from the content-addressed store, hash-verified
| 60 | } |
| 61 | |
| 62 | @Override |
| 63 | public VEval eval(final double[] x, final boolean wantGrad, final boolean wantHessian) { |
| 64 | final VEval r = new VEval(x,wantGrad,wantHessian); |
| 65 | if(regularizeTerm>0.0) { |
| 66 | for(int i=0;i<dim;++i) { |
| 67 | if((skip==null)||(!skip.get(i))) { |
| 68 | final double xi = x[i]; |
| 69 | r.fx += -regularizeTerm*xi*xi; |
| 70 | if(wantGrad) { |
| 71 | r.gx[i] = -2.0*regularizeTerm*xi; |
| 72 | } |
| 73 | if(wantHessian) { |
| 74 | r.hx[i][i] = -2.0*regularizeTerm; |
| 75 | } |
| 76 | } |
| 77 | } |
| 78 | } |
| 79 | return r; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * |